What did Mendel's cross-pollination of pea plants prove?
A. Inherited factors combine in offspring to create entirely new characteristics.
B. Each parent only passes on one-half of its hereditary factors to each offspring.
C. There is no such thing as a true-breeding plant; they all have hidden factors.
D. It takes four generations of offspring to identify the parents' factors.
Answer:
B. Each parent only passes on one-half of its hereditary factors to each offspring.
Explanation:
Pea plants have both male and female reproductive organs. As a result, they can either self-pollinate themselves or cross-pollinate with another plant. In Mendel's experiments, he was able to cross-pollinate purebred plants with particular traits and observe the outcome over many generations.
As a little fun fact; as we know, both human parents have 46 chromosomes, and when reproduction occurs, they both give half of their chromosomes (23) to their offspring!
WILL GIVE BRAINLIEST please answer this question:
Answer:
A. Mitochondrion
B. Cytoplasm
C. Nucleus
D. Chloroplast
Explanation:
Mitochondria are membrane-bound cell organelles (mitochondrion, singular) that generate most of the chemical energy needed to power the cell's biochemical reactions
The cytoplasm is the gel-like fluid inside the cell. It is the medium for chemical reaction. It provides a platform upon which other organelles can operate within the cell
The nucleus controls and regulates the activities of the cell (e.g., growth and metabolism) and carries the genes, structures that contain the hereditary information.
Chloroplasts are plant cell organelles that convert light energy into relatively stable chemical energy via the photosynthetic process. By doing so, they sustain life on Earth.
how does getting fit change teens and provide benefits beyond healthier bodies?
A. It changes them in terms of good ways to work out.
B. It changes them in terms of every fitness level.
C. It changes them in terms of self-esteem and confidence.
D. It changes them in terms of exercising on a regular basis.
Answer:
Getting fit, C, changes them in terms of self-esteem and confidence
Explanation:
Theres more to doing exercising than just getting a healthier body. It could also contribute to your positive body image.
Matter is not created or destroyed when?
Matter is not created or destroyed at any time or place, it only changed from one form to another.
hope it helps...!!!
I NEED THESE QUICK BECAUSE ITS DUE TODAY SO PLEASE ANSWER NOW THANJK YOU! <33
1.How do wavelength and frequency compare on the electromagnetic spectrum?
2.What are the different forms of radiation on the electromagnetic spectrum?
3.How is the electromagnetic spectrum used to examine astronomical objects?
Answer:
In physics, electromagnetic radiation consists of waves of the electromagnetic field, propagating through space, carrying electromagnetic radiant energy. It includes radio waves, microwaves, infrared, light, ultraviolet, X-rays, and gamma rays. All of these waves form part of the electromagnetic spectrum.
Explanation:
Many small poisonous animals are brightly colored, including the poison dart frog and some species of fish, octopi, and insects. What is common in their environments that would lead to these different animals having a similar trait?
Please answer in complete sentences at least 3 or 4.
Thank you! I’m working on other things for my classes which is why.
Many small poisonous animals are brightly colored, including the poison dart frog and some species of fish, octopi, and insects share same environment and habitat (aquatic).
What is an environment?When we discuss the environment we mean the world in our general surroundings that encompasses and influences all life on earth, including the air, natural ways of life, the water cycle, plants, creatures and different people.
Thus, share same environment and habitat (aquatic).
To learn more about environment click here:
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<3 Lots of love!
-The Book Worm.
Which objects are generally smaller than a planet?
asteroids, comets, and meteors
stars and comets
asteroids, meteors, and stars
stars, comets, and asteroids
Answer: asteroids, comets, and meteors
Explanation:
Stars are usually larger than planets and the only option not including stars is the first one. This means the answer to your question is most likely:
asteroids, comets, and meteors
Read more about your question here:
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Many small poisonous animals are brightly colored, including the poison dart frog and some species of fish, octopi, and insects. What is common in their environments that would lead to these different animals having a similar trait?
Answer:
trees brah
Explanation:
Can anyone find this bug and tell me what it is please thanks.
Which is an adaptation plants have developed because of gravity?
vines curl around trees
roots grow into the ground
leaves curling
plants lean
Answer:roots grow into the ground
Explanation:
it is a coordinated process of differential growth by a plant in response to gravity pulling on it. It also occurs in fungi. Gravity can be either "artificial gravity" or natural gravity. It is a general feature of all higher and many lower plants as well as other
PLSSS HELPP I BEG I'LL MAKE BRAINLIEST TO THE CORRECT ANSWER
Answer: I t will be Stationary front .
Explanation: Because rest other are not supporting the condition given in the picture. So , the best option supporting the picture is Stationary Front.
Because global temperatures are ________[1], some species are seeking out ______[2] elevations in the Himalayas to colonize. Scientists were worried that these organisms would not have enough _______[3] to live, but they have found that there is adequate ________[4] at higher elevations. This movement may help these organisms survive the effects of ______[5].
Daily Biology Question! :)
Answer:
increasing[1], higher[2], space[3], food[4], climate change[5].
Explanation:
Because global temperatures are increasing[1], some species are seeking out higher[2] elevations in the Himalayas to colonize. Scientists were worried that these organisms would not have enough space[3] to live, but they have found that there is adequate food[4] at higher elevations. This movement may help these organisms survive the effects of climate change[5].
(Although am positive about 1, 2 and 5, you will need to double check 3 and 4. What I can tell you is that I don't think lifespan has to do with 3 or 4. I chose space and food simply due to the thought that more species moving to higher elevations allows for less space to live, but more prey to be hunted easier.)
A group of students is studying the types of plants that grow in a meadow next to their school. The meadow is mowed regularly, but it does not get any water other than rainfall. The meadow has several kinds of plants that are typically found in a grassland ecosystem. The plants include grass and clover. But there aren't any trees. The meadow has insects, including ants. Earthworms live in the soil. Garter snakes and mice also live in the meadow.
Answer:
Plowing cut tallgrass root systems and interrupted reproduction. Drainage changed the soil's water content, and soil erosion lost soil.
How do mutations lead to genetic variation within a species?
O A. Making exact copies of DNA increases the rate at which parents
can produce offspring.
B. Changes in DNA produce genetic traits that can be passed on to
offspring.
C. Making exact copies of DNA increases the total number of
organisms in a population.
OD. Changes in DNA prevent organisms from surviving long enough to
reproduce.
Answer:
B. Changes in DNA produce genetic traits that can be passed on to offspring.
Explanation:
biodiversity
Answer:
B. Changes in DNA produce genetic traits that can be passed on to
offspring.
Genetic variations that alter gene activity or protein function can introduce different traits in an organism.
Hope this helped :)
PLEASE HELP THIS IS DUE BY MIDNIGHT TONIGHT!!!!
Calculate the average daily temperature for each thermometer. What is the difference between the two?
Answer:
25.2
Explanation:
you add app all the numbers for the 1 column and divide by 7 then you do the same for the other column then subtract the totals from both to get the answer
Which adaptation favors the survival of an organism?
a ground squirrel population in the forest develops webbed feet for swimming
lengths of beaks in a bird population increase to the point birds can no longer groom themselves
a desert coyote population loses the ability to cope with low water conditions
proteins expressing color in butterfly wings mutate to improve camouflaging abilities of butterflies
I'm pretty sure it's "proteins expressing color in butterfly wings mutate to improve camouflaging abilities of butterflies" but I'm not sure
proteins expressing color in butterfly wings mutate to improve camouflaging abilities of butterflies
Explanation:Adaptations occur when the genes of an organism change over time, usually due to external factors.
Beneficial Adaptation
Not all adaptation helps; as stated above adaptations can occur with any genetic mutation, even if it is not beneficial. That being said, beneficial adaptation helps an organism survive and reproduce, so helpful adaptations are the most likely to be passed on. Organisms that have harmful adaptations tend to have fewer offspring, meaning the adaptation does not pass on to the rest of the population.
If an adaptation decreases an organism's ability to survive or reproduce, then it is considered harmful. A beneficial adaptation must improve the life of an organism.
Camoflague
Camoflague allows an organism to hide from other living things, either to hunt or hide from predators. For these reasons, camouflage is considered beneficial. Specifically, butterflies use camouflage to hide and escape from predators that would eat them. This means that camouflage increases the life span of a butterfly. Thus, it must be a beneficial adaptation.
Explain why it makes sense that the levels of estrogen and progesterone are low in blood of a female during menstruation
PLS HELP ! URGENTTT
I'LL GIVE BRAINLY
Answer:
At the beginning of the follicular phase, the lining of the uterus (endometrium) is thick with fluids and nutrients designed to nourish an embryo. If no egg has been fertilized, estrogen and progesterone levels are low. As a result, the top layers of the endometrium are shed, and menstrual bleeding occurs.
Explanation:
What heat transfer is an example of the sand burns your feet?
Answer:
Conduction
Explanation: Conduction is how heat transfers through direct contact with objects that are touching
Answer: it's conventional
Explanation: the heat is traveling from the sand to your foot.
why is the ocean temperature near Christchurch change in El Niño years and how does it affect the air temperature there.
Answer:
Why the ocean near Christchurch is a different temperature than we'd expect for its latitude (distance from the equator). Water moving from the equator is warmer than would be expected based on latitude, and so is warmer than the air it passes.
Explanation:
Give three ways that photosynthesis and respiration are dependent on one another.
Answer:
Both processes use and produce ATP in reactions that are carried out on membranes and are controlled by enzymes. Photosynthesis and respiration both involve cycles of reactions, involving redox reactions. The processes both use the same coenzymes, such as NAD and NADP.
Explanation:
Photosynthesis makes the glucose that is used in cellular respiration to make ATP. The glucose is then turned back into carbon dioxide, which is used in photosynthesis. While water is broken down to form oxygen during photosynthesis, in cellular respiration oxygen is combined with hydrogen to form water.
Nah i can give u one tho
Answer:
products of one systeme are the reactants of the other!
Explanation:
The relationship between photosynthesis and cellular respiration is such that the products of one system are the reactants of the other. Photosynthesis involves the use of energy from sunlight, water and carbon dioxide to produce glucose and oxygen. Cellular respiration uses glucose and oxygen to produce carbon dioxide and water.
Every ecosystem has its own set of environmental stresses. What nonliving factors would cause stress to organisms in a forest ecosystem? What about a desert ecosystem?
WILL MARK BRAINLIEST (THIS IS HARD SO 20 PTS)
List a few benefits and a few limitations for each:
Investigation:
Experiment:
Investigation
Experiment
Benefits:
Limitations:
Benefits:
Limitations:
3 benefits and 2 limitations for each, have till wednesday, so take ur time.
Answer:
BENEFITS:
The Descriptive investigation is used to describe a natural system when nothing or very little is known about the system. Like observing a new specimen in the microscope and describing it by observing the specimen.
A comparative analysis is used to compare two or more variable in nature by collecting data like observing the different colors of the rocks. It provides the data to show the similarity and dissimilarity of the population.
The Experimental investigation is used where experiments are performed to test and answer the scientific questions. The advantage is that data can be used as evidence for future research.
LIMITATIONS:
descriptive method of investigation
It cannot be used to correct variable or be used to determine causes and effect of the problem
experimental method of investigation
It might create an artificial situation that do not always represent the real life situation
comparative method of investigation
It is not easy to control other variables that might influence the study
please help grades go in in like 3 or 2 hours and I need help please
Answer:
# of cells after each division
1
2
4
8
16
Explanation:
Each time they divide again, just multiply the number of cells by 2. Just draw one cell in the first diagram, two in the second, for in the third, 8 in the fourth, and 16 in the fifth.
The ________ and ________ Hemispheres of the Earth experience opposite seasons. A. Western, Northern B. Southern, Eastern C. Eastern, Western D. Northern, Southern
Answer:
D. Northern, Southern
Explanation:
The Northern and Southern Hemispheres experience opposite seasons and different day lengths, no matter what time of year.
this is an english question accidently put biology
Sometimes, you can take an action that solves more than one problem at a time. Which idiom represents this idea?
A. That will kill two birds with one stone.
B. Don't count your chickens before they hatch.
C. That is the best of both worlds.
D. Every cloud has a silver lining.
Based on Darwin's observations, what is the best possible explanation that two organisms that live very far away from each other and in different environments share similar traits?
A: The organisms evolved similar traits that are useful in a wide variety of environments.
B: These organisms developed similar traits because their environments were at one time similar.
C: The organisms share a common ancestor from long ago.
Answer:
B: These organisms developed similar traits because their environments were at one time similar.
Explanation:
As per the given data the answer is correct.
PLEASE HELP ASAP!!
When relative humidity is 100%, the two thermometers register the same temperature. However, at 50% humidity, the wet bulb thermometer registers a lower temperature than the dry bulb thermometer. Why do you think the spinning motion cools the wet bulb thermometer when there is less humidity in the air?
Humidity likes to hold onto heat. The less humidity in the air the more the heat can be dissipated.
What do you mean by humidity?Humidity is the amount of water vapor in the air. If there is a lot of water vapor in the air, the humidity will be high. The higher the humidity, the wetter it feels outside. On the weather reports, humidity is usually explained as relative humidity.
Humidity is the measure of the level of moisture vapor suspended in the air around you. Although you can't see it, it's still there. The ideal relative humidity for health and comfort is somewhere between 30-50% humidity.
When the humidity level increases along with temperature, it's harder for the moisture to dry, and you feel warmer. When the air indoors is 75 degrees and the humidity is 30 percent, the air actually feels like 73 degrees.
Learn more about humidity:
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When the diaphragm relaxes, does it force CO2 out of the lungs, or just "air" in general? just anwer yes or no thanks :)
air is forced out when the diaphragm relaxes
HELP ACK
ulate the kinetic energy for the small marble when dropped at each height.
KE =½ mv2. Be sure to show all your work.
Height of drop
formula
substitution
Answer with unit
60 cm
90
2 m
Answer:
No Answer
Explanation:
No Mass was provided
No Velocity was provided
Which is a behavioral adaptation of a bear?
mating
thick fur
eating fish
hibernating in winter
Answer:
Hibernating in winter
Explanation:
A behavioral adaptation is something an animal does usually in response to some type of external stimulus in order to survive.